Printer&#39;s quoin



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i Si o @EGE-GE DUNCANSON, dit.. OF ED-RSEY CETY, NEVI JERSEY.

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Application filed August l To @ZZ whom t may concern:

Be it known that l, Groen 'DUNoaNsoN7 Jr., a citizen ot' the United Sta-tes, and a resident ot' Jersey City, in the county or" Hudson and IState of New Jersey, have invented a new and improved Printers Quoin, ot which the following is a tull, clear, and exact description.

The present invention relates to new and useful improvements in printers quoins and the same is an improvement on the device disclosed in United States Letters Patent No. 1,375,495, granted to me April 19, 1921.

llt is one or the objects ot the invention to provide a printers qnoin which after the same is set it may be locked to prevent accidental displacement. of the parts when in use.

` llt is a further object of the invention to provide a printers quoin in which the two wedge blocks which go to make up the quoin will be t'reely movable with respect to one another.

lt is a still 'further object oit the invention to provide a locking;V means 'for the wedge blocks ot al printers quoin in which the locking` means serves also as means for retaining the wedge blocks against accidental displacement when they are not in use.

With the above and other objects in view, reference is had to the accompanying drawinns. in which- Figure l is a view in side elevation of a printers quoin constructed in accordance with the present invention;

Fig'. 2 is an end view ot one of the wedge blocks of the quoin;

Fig. 3 is a vertical sectional view taken on the line 3-3 of Fig. l;

Fig. 4t is a detail side elevational view of one ot the bloc-ks which gc to make up the quoin.

Iwei'erring;f more particularly to the drawings. the quoin comprises two triangular-- shaped blocks 5, with their angular faces placed together in such a. manner that rela-- tive movement ot the blocks longitudinally produces an increase in the transverse dimension ot the quoin as is the common prac# tice in dewices ot this character.

Each ot the blocks is provided with a plurality of rack teeth 6 Ytor the reception ot a key by means ot which the two blocks are moved longitudinally as above des Serial No. 489,799.

scribed. Tlach block 5 is provided with a 55 central web Z and each or said central webs i is provided with an offset vertical wall 8. more clearly shown in Fig, el, each ot these offset vertical walls 8 is provided with an elongated slot 9 and passing through 60 each ot said walls adjacent one end ot its respective slot is a screw-threaded opening 10. Each ot these screw-threaded openings l() is adapted to receive a bolt ll, as more clearly shown in Fig. 3. ily 'this construc- 65 tion is apparent that each of the blocks 5 carries a screw-threaded member, and it w ll be noted that the screw-threaded member oit each block passes through and has movement in the elongated slot of the` other block in order to provide for the relative lon ltudinal movement of the two blocks 5. The enlarged end of each of the blocks 5 inovided with va slot l2 or the like in which the oi't'set portion of the opposite 75 block slides.y it being` noted that the slot l2 is oiiiset with respect. to the transverse center ot each block.

Assuming now that the quoin is desired u 'tor use, it is placed in position between the 80 type matter and the chase and the two blocks are moved relatively one to the other by the F e oi' the operator until they triction a engage both the type matter and the chase. After this has been accomplished, the key is inserted into engagement with the teeth 6 and the members are moved by the key until they are tightened in position as is the common practice. litter the members have been so positioned and tightened by means of the key the screw-threaded members il, are tightened until they clamp between their headed portions and the offset portion by which they are carried, the offset member oit the opposite block with which they have sliding;` movement, thus locking the two wedge blocks ot the ouoin against longitudinal movement while they are in position in the chase.

By providing); each wedge block ot the lo@ quoin with a screw-threaded fastening 1l, it will be seen that in order to gain the desired results. the heads of the screw-threaded tasteninns are oppcsitely disposed7 thns making it immaterial trom an operative point of view., in which position the quoin is placed within the chase. since in either position the head oit one oit the screw tastenings is avail f against relative movement.

p 2. A printers quoin comprising two wedge blocks movable longitudinally with respect to one another, and screw threaded means Carried. by e'aeh olf said blocks and vadapted for interengagement with the other bleek to'positively look said blocks against movement in either direction, and for the purpose set forth. y

3. A printers quoin Comprising a pair of blocks, each of which is provided `with an offset Web3 a seren7 having threaded engage- 'mentvvith the Web of each. bloclgand in sliding engagement with a portion of the other block, whereby the screw when tightened prevents relative movement of the blocks.. y

il. A printers quoin comprising al pair of Wedge-shaped blocks movable longitudinally with respect to one anotherj an oil'set slottedl vweb formed integral Witheaeh o'lY saidblooks, a screw having threaded engagement With a portion ol'" the Web nleaeh block, each of sai dsereivs having sliding engagement with the slotted web of the opposite block from that by which the screw is carried, said serews serving to retain. the blocks together to form a unitary structure and also serving to look the blocks against longitudinal movement, as and for the purpose set forth.

5. A printers quoin comprising a pair of blocks, and means carried by each of said blocks, each of said means having threaded engagement With the bloelrby which it is earriedvand having sliding movement with the other block as and for the purpose set `forth.

6.- A printers quoin comprising a pair of sliding vi'edge-shaped bloekseaeh of which has a slotted llange, and means carried by each hlook and operable through the slot of the flange of the other block to seeurethe blocks togetherl as a unit.

7. A printers quoneomprising a pair of blocks each of which is provided With a slotted flange, and means carried by the flange of each of said blocks, and operating through the slot inthe flange of the opposed block, lsaid means serving to bind the flanges of the blocks together to prevent relative movement of the blocks. A GEQRGE DUNCANSON, JR. 

